Breeding fish in a domestic aquarium is not only about pairing a male and a female of the same species and hoping for the best: it requires careful preparation and monitoring. You must first learn about the optimal living conditions and the mode of reproduction specific to the species you intend to breed. Next, you need to select a potential healthy parent of each gender. After this step, you need to adjust the living conditions (water temperature, pH level, lighting, and surrounding flora) in the aquarium to make them more suitable for reproduction. This acclimatization helps to “create the atmosphere” for the fish and guarantees a successful mating.
Take an adult and healthy fish of each sex
To breed fish, first find out what gender they are. Unlike other animals, it will be more complex to want to differentiate their genitals. Although they have certain identical features, there is a diversified biological difference according to the species. For example, female cichlids generally have a rounded body and less pronounced gills, while males usually have a more vivid coloration and sometimes have a small bump on the head .
Be sure to cultivate only fish of the same species. Even if the mating of two different species is feasible, there is a great risk that the resulting hybrid will be weak, malformed, or sterile.
Discard suffering, injured, or malformed fish. They are unlikely to cause healthy offspring.
Be aware that you can call on an aquatic veterinarian or a breeding specialist if you have trouble differentiating the sex of your fish.
Put the parent fish together in a separate aquarium for fish breeding
You can name it “breeding pond”. This isolation of the parent fish limits the size of the spawning pond to 2 fish, thus making mating easier than usual. This also promotes the optimization of indoor living conditions while avoiding disturbing a larger number of fish not selected for reproduction.
When you transfer breeding fish to the spawning pond, make sure to reserve living conditions almost identical to those of their original pond. Then gradually move on to the required adjustments to allow them to acclimatize.
Put the fish in condition to make them more vigorous
Feed them high protein nutrients when you encourage them to breed. A proper diet will allow them to flourish and thus increase their fertility. Remember this: the good health of babies depends on that of their parents.
Feed them with fresh or frozen artemia, white worms, or daphnia, because almost all species adapted to medium-sized aquariums, such as the fighter and the scalar, are fond of them.
Condition the fish for 2 weeks before mating. It’s always better this way.
Find out about the diet of the species you have selected so that you can feed them properly during the preparatory stages for mating. In general, fish give the best of themselves with a balanced diet consisting of fresh herbs and living foods such as salted shrimp.
Create favorable breeding conditions for your fish
Learn about how your fish reproduce
Before pairing 2 fish of opposite sexes, try to know their instincts in terms of reproduction. Find what attracts them to each other, their mode of copulation, and laying. Thus, you will be able to recreate the conditions of reproduction in nature.
Research your species in a special encyclopedia. Also, consult the books and manuals that deal in-depth with the specifics of aquarium breeding.
Optimize the quality of the water in the aquarium
Apply your discoveries to the selected parents to provide them with a more welcoming environment. The temperature, as well as the chemical and mineral balance of the water, can influence the propensity of fish to mate or not. If necessary, use another heating element to heat the pool or soften the water to change its composition.
Before coupling the selected species, make sure that the water is at a temperature varying between 28 and 31 ° C, with a pH between 6 and 7 and a moderate to low light.
If you plan to make a substantial change to the aquarium water, try to do it gradually. Avoid increasing or decreasing the water temperature by 3 to 5 degrees over a week. An abrupt change can stress or even harm the fish.
Simulate the mating season for perfect fish breeding
This is the period during which all fish mate in large numbers. Use a watering can or circular spray system to achieve the effect of a light shower on the surface of the water. Reduce the water level by emptying the basin in half and gradually filling it. It can also give the impression to fish that this is the ideal breeding season.
When you lower the water level in the aquarium for the first time, let the fish get used to this level for a few days. Then gradually return to the initial level for about a week, using water with a temperature between – 17 and – 16 ° C below that found in the aquarium.
To perform a more convincing simulation, lower the intensity of the light in the room then turn on and off a flashlight near the aquarium to produce “flashes”.
If you are considering creating an ideal physical environment for your fish to reproduce, first find out how they choose their partners and lay their eggs.
These structures will also provide an enabling environment where female fish can lay their eggs.
Equip the basin with a low power filter
If necessary, replace the filter you currently have with a less powerful one. High-power filters can circulate excess water and thus generate strong currents that can sweep the eggs or even suck them up.
Sponge filters are generally recommended for aquarium reproduction.
If you use a less powerful filter, clean or replace the aquarium water more frequently (about 15 to 20% of the total volume per week or every two weeks as needed).
Measures, protect and care to take for perfect fish breeding
Remove the parents from the breeding pond
After the female has laid her eggs or given birth to a live fry, return the breeders to their environment, under the original conditions where they will acclimatize without delay. Thus, the eggs will not be hindered and this will allow the fry to hatch. Keep the conditions in the aquarium at the same level. This can now be used as a nursery pond for raising fry.
Except for a few feeding species, it is not uncommon for adults to devour their eggs.
If it is impossible to set up another tank for the fry, introduce plants in abundance which will serve as hiding places as soon as they manage to swim.
Reduce the lighting in the aquarium
Cover it on all 3 sides with paper or pieces of cloth thick enough to prevent light from entering it as much as possible. Eggs and fry are generally sensitive to light: excess light can delay their development or even kill them. As they grow, they become more tolerant of light. This will allow you to return to the original level of brightness.
Be sure to cover the sides most directly exposed to light. Leave one of the larger sides uncovered for observation.
Cover the aquarium squarely with a sheet outside of the time devoted to feeding or controlling the fry.
Change the aquarium water daily
Empty the water from the basin daily at 25 to 50%, and add an equivalent amount of freshwater instead. The latter must be clean while the fry learns to breathe and filter the oxygen in the water.
Draw on the same source each time you fill the aquarium because the new water must have a composition identical to that which was withdrawn.
Feed the fry several times a day
At their first hatching, the fry is provided with a large yellow bag of the egg which feeds them for a few days. As soon as this bag of eggs disappears, start feeding them yourself. Liquid egg yolks, crushed flakes for fish, plankton, and algae are examples of foods to feed your fry.
Buy the food and supplements you need from pet stores that sell fish products. As usual, try to find out which foods are suitable for your fry.
The smallest species such as red neon and rainbow fish cannot digest industrial food well so soon after hatching. Then feed them with liquid infusoria or similar supplements that they can digest easily.
Give them more substantial live food such as brine shrimp and small worms when they become larger.
The Bottom Line from thefishinfo.com
Partitions for aquariums can be useful if you are unable to install a separate spawning or nursery.
Line the bottom of the basin with a substrate composed of heavy materials such as stones or marbles. The eggs laid in a scattered manner by the fish nest in the spaces created in this substrate, which puts them out of the danger of adult predators.
Remove the weak and suffering fry from each generation so that those who are healthy are not forced to compete for food.
Sell your fish to pet stores and other aquarium owners. This can be an effective way to recover the cost of equipment and materials when you become much more experienced.
Remember that the growth in numbers of fish inevitably leads to the restriction of the space available in the aquarium. Before you start mating your fish, make sure you can meet the requirements of a large colony.
The betta fish is a striking and curious animal, also known for its aggressiveness and territoriality. Which is why it is also called a fighting fish. Many people choose this variety of fish as a pet but not everyone is clear about the basic care of a betta fish. What they must take into account so that the fish lives as well as possible. In this Thefishinfo.com article, we explain how to care for a betta fish.
How to take care of a betta fish for beginners
Steps to follow:
Firstly, it should be noted that betta fish live better as a couple than in groups. Since they are very territorial and could attack each other; hence the other name by which they are known: fighting fish. Thus, we recommend that you opt for a male and a female since two males together also tend to have problems.
When choosing the aquarium for your betta fish or fighting fish it will be necessary that the dimensions are considered. So that they can swim freely and do not pose any problem for their wide tail. The depth of the water should be about 15 cm and we will not place rocks at the bottom.
Also, it is not recommended to install artificial plants in the aquarium. Since betta fish can catch on them and tear off their tails. In case we want to place vegetation, it must be natural.
As for the optimal temperature for betta fish, it should be kept between 25 and 30ºC. For this reason, when caring for a betta fish properly. It is probably necessary to purchase a heater with a thermostat. 
The betta fish are carnivores so they ideally feed them live food, but the truth is that dry or frozen food will be more practical and safe for the failure to contain parasites. In this way, you will have to make sure that the food you give them is rich in protein. And, occasionally, you will be able to feed your betta fish with mosquito larvae, small earthworms, worms, etc.
To clean the aquarium use specific products and never bleach or other abrasive products that could kill your betta fish. Likewise, it is recommended that the water changes be partial and not total so that the water temperature is maintained.
Two or more males cannot live together because they could kill each other to defend their territory. It is better to choose to mix a male with a female or two females.
The females can share their space with other animals such as chupalgas, calm and peaceful fish, freshwater mussels, and snails.
The usual diet of betta fish is based on packaged fish food, especially a small ball that looks similar to strawberry seeds. They only need to take food 3 times a week, in case you give them more food, the fish could overfeed and have a shorter life.
The life expectancy of a betta fish, if the care you provide is adequate, ranges from 4 to 5 years.
How to Know if a Goldfish Pregnant And Will Lay Eggs? :
When a female goldfish is about to lay eggs, she is said to be pregnant. If you think your fish will spawn, there are several ways to be sure. First, you need to know if the conditions are right for your fish to reproduce, then look for the signs that precede spawning in both the female and the male. Although this is rare, it is sometimes possible to buy a pregnant female directly. Otherwise, your goldfish will breed if you have a male and a female. In case if you don’t know How to take care of a goldfish? then click the given link to read briefly about it.
Check if conditions are favorable for your goldfish to lay eggs
Determine if your fish is a female
The best way to find out is to ask the seller when you buy it. However, when you look at the fish from above, you will notice that the female has a more rounded body than the male. The female also has pectoral fins (those which are under the gills), shorter and round than those of the male.
Goldfish do not usually lay eggs until they are one year old.
Take into account the time of year
If your fish is outdoors, it will only spawn during the spring and early summer. However, if your fish has always lived indoors, it can lay eggs at any time of the year. If you want to know if your outdoor goldfish will spawn, you have to take into account the time of year.
Check the water temperature
Goldfish are more likely to breed in the water at a temperature of around 20 ° C. If you think your fish is about to lay, check that the temperature is correct. (1)
Let’s discuss now how to observe the signs preceding the laying.
Look for “wedding buttons” in the male goldfish
When the male is ready to breed, small white pimples grow around his head, on his cheeks, and his pectoral fins. If you notice these white dots, your female is more likely to be pregnant.
These “wedding buttons” can be difficult to spot. If you don’t see them, it doesn’t necessarily mean that the female is not carrying eggs.
Pay attention to the hunting of the male goldfish
When preparing to mate, the male can start to hunt the female, it is a kind of courtship display. Most of the time, this behavior is more visible than white buttons.
Assess the activity level of your fish
When females lay their eggs, they usually start moving slowly. If you notice a decline in activity by your female, this may be a sign of imminent egg-laying.
You may also notice that she spends more time in plants or shelters, where she then lays her eggs.
Pay attention to a refusal of food
When fish prepare to lay, they sometimes refuse food. If your female is not hungry, she may lay eggs quickly.
Observe the belly of the fish
Females are generally slightly more rounded than males. When they are about to lay eggs, their stomachs can get bigger and come out a little more.
As with “bridal buttons”, the increase in belly size is more visible in some fish than others. In some females, the difference is imperceptible.
Nature is always surprising and raises questions that science strives to answer. Thanks to new technologies, we can observe animals in their natural habitats and thus study and understand many peculiarities that until recently were a mystery. For example, how can it be possible that marine mammals – like whales and dolphins, which need air to breathe as we do – can live their entire existence in the water? And, if they need air to breathe, how do whales sleep without drowning? If you want to learn more about this issue, don’t miss this article from Thefishinfo, because we tell you how whales and dolphins sleep and why they don’t drown. 
Unlike humans, we don’t need to think to breathe, whales breathe voluntarily. Our breathing is reflex during sleep and we even continue to breathe even though we are unconscious; for this reason, our brain manages to completely disconnect while we sleep and we can reach phases of deep sleep. Not so for whales, which even while sleeping need to be aware of their breathing. So don’t whales sleep? Does your brain not need to rest? The answer to both questions is yes: the whale’s sleep and their brains also need rest.
The big difference between marine mammals (whales) and land mammals (us) is that seafarers have a brain that is capable of connecting and disconnecting their hemispheres independently. Our brain, by contrast, is unable to function using only one of its hemispheres. This peculiarity of marine mammals, like cetaceans, allows them to sleep by resting only half their brain. In this way, a part of the brain remains alert, ensures that the animal breathes, that no danger lurks, and even allows it to move while sleeping.
This way of sleeping is called slow-wave uni-hemispheric sleep. It allows marine mammals to sleep in cycles, alternating the resting cerebral hemisphere and the one that remains waking. Thanks to him, these animals can survive during sleep. This original way of sleeping has the disadvantage that it hardly allows them to reach the REM phase of deep sleep and, when they do, it lasts only a few minutes.
This way of sleeping prevents the whales from separating from the herd during sleep, as they can stay in motion next to each other. This activity during sleep is vital for cetaceans since it minimizes the loss of body temperature due to the cold water, something that could lead to death if they remained still. Also, this contributes to the survival of the calves, which grow in movement together with the mother while they are babies. Thanks to a technique called step swimming, the calf is placed in a position where the mother’s turbulence of movement propels it and keeps it next to it. During the first weeks of life, the mother cannot stop at any time, otherwise, the calf would drown, as it cannot yet float on its own.
How dolphins sleep
The system used by dolphins to sleep is the same as the one we have explained with the whales. Their ability to function alternately with a single hemisphere of the brain means that dolphins can enjoy several complete cycles of sleep per day (approximately two hours each).
Although sleep habits vary by species, dolphins — unlike whales, which often sleep in deep water and rise to the surface to breathe — prefer to sleep in surface water, and some even float during sleep. A curious detail is that some dolphins rest horizontally, but others do so vertically.
However, dolphins have more peculiarities, since their sleep is deeper than that of whales and they can reach the REM sleep phase more easily, although it does not last more than a few minutes. Furthermore, they sleep with one eye open and one closed; the open is the opposite of the area of the brain that remains in operation. The part of the brain that remains awake is not one hundred percent, but it can detect movement and determine when it is necessary to go up to breathe.
In the sea, standing still can mean death, which is why most dolphins also move during sleep. Adult males do this in pairs and swim very slowly. Females and young swim in large herds, use the step swimming system and also take turns watching out for natural hazards and obstacles.
Why whales and dolphins don’t drown when they sleep
To know how whales sleep without drowning, we have to know how they breathe. Their respiratory system has lungs just like ours, and they are proportional to their size, that is, much larger than ours.
The equivalent of our nose is a hole that they have on their head and that is covered with a skin membrane called a blowhole. According to the experts, the movement of this “cover” is completely voluntary, which means that the animal has to be conscious to be able to open the blowhole, breathe and then close it when submerging so that no water enters its lungs.
That is why whales and dolphins do not drown when they sleep; your respiratory system remains closed and water cannot penetrate your lungs. It is almost impossible for a marine mammal to drown while sleeping, although it can suffocate due to lack of oxygen if it does not breathe in time.
The morphology of marine mammals has also developed other skills as part of their adaptation to the marine environment:
Their large lungs allow them to take huge puffs of air.
Your body tolerates higher levels of CO² than terrestrial animals, so it takes much longer for your brain to start the respiratory process.
They can maintain their blood supply with “minimal services”, because when they sleep their blood only flows to the vital organs and processes. While they sleep, their digestion, for example, stops. Published By Thefishinfo.com
According to experts, sharks have been around for more than 450 million years. There are many curious and interesting facts about sharks, such as that the whale shark is the largest fish in the ocean, that sharks replace their teeth throughout their lives, or that they have very strange sleeping habits. If you like animals or you are simply a very curious person, do not miss the next article in Thefishinfo, because below we explain how sharks sleep and we reveal everything you should know about this fish.
The truth is that sharks do not sleep, at least not as human beings understand it. What sharks do is rest, so that only part of their brain is unconscious when they perform this action. In fact, and closely linked to this, we must mention that most species of sharks rest while moving because sharks have to be in constant movement to be able to breathe.
On the other hand, there are species of sharks such as the nurse and the catfish (remember that there are approximately 465 shark species) that can keep still and continue breathing, something that is due to their ability to absorb water by mouth pumping. But this does not mean that they can sleep soundly as humans do, because they need a certain degree of consciousness to be able to breathe. 
In turn, it should be noted that the white shark has been seen sleeping or resting in a relaxed and calm way, but without stopping to move and with its eyes open. This is because the great white shark, also called the “king of sharks” or the “great shark” has certain special characteristics:
On the one hand, this shark has a highly developed sense of smell and is capable of detecting residues of blood and other elements several kilometers away, so you should always be vigilant.
The same goes for movement, as the king of sharks can sense any movement in the water several meters away.
Most sharks, when resting, should keep moving. But why do they take these rest periods in constant motion? The easiest explanation is that sharks do not have a swim bladder like much other fish, a flotation organ that allows them not to sink.
Besides, to be able to breathe, sharks must have their mouths open and thus absorb the necessary oxygen that passes through their whites. These gills only absorb oxygen when the shark is moving, something that also explains why these fish sleep swimming.
On the other hand, it is worth mentioning that there are shark species that have blowholes. These are openings behind each eye that cause water to move through the shark’s gills, allowing the fish in question to rest at rest and without moving on the ocean floor.
To start, you should know that there are sharks that do not even have eyelids because the seawater is responsible for washing their eyes at all times. However, some sharks have a translucent membrane (or Nictitating membrane) that allows them to keep their eyes protected when they swim at high speed, when they attack or when they are attacked.
However, we can also affirm that if sharks sleep with their eyes open, it is because, remember, they are not asleep, but a part of their brain is still conscious to continue the cycle of taking air and resting at the same time.
Goldfish are soothing animals that require little maintenance. They are often favored by novice breeders. However, they require as much care and equipment as most aquarium fish, as the traditional goldfish bowl can kill your fin friend. Whether you want to raise a goldfish, adopt a pet or just know what it looks like, you need to know how to make it happy and keep it healthy for years (and maybe even decades) to come!
Choosing an aquarium and maintaining it: Steps to follow
Buy a large enough aquarium
The minimum size of the aquarium for 1 goldfish is 56 L (don’t forget that it can reach 25-30 cm and sometimes more!) And you will need to provide 37 L of water for each additional fish. Research the different types of goldfish. Common goldfish, comets, and other single-tailed goldfish need a pond or huge aquarium to reach 30 cm or more. Don’t buy single-tailed goldfish if you don’t have a 680 L aquarium lying around or a pond you can put them in when they get too big.
For decades, it was said that goldfish were able to live in small jars and that is why they were known for their low life expectancy. However, goldfish live today as long as a dog! Without sufficient filtration, ammonia quickly accumulates in such a small space and the environment becomes toxic.
The goldfish grows according to the space available, however, it does not have to reach its maximum size. Your 2.5 cm fish can eventually reach the size of your arm, but this will only be possible if you put it in a large pond or professional aquarium.
Prepare the aquarium
Prepare the aquarium before buying the fish. Time and attention are needed to create an ideal habitat for goldfish. As noted below, there are several steps you can take to make sure your water and living conditions meet your needs.
Fish are sensitive creatures that stress when they move from one environment to another. Too much change in too short a time can kill them even if the living environment is ideal. Do not transfer your fish from one aquarium to another.
In an emergency, a large, well-washed plastic bucket filled with water treated with a conditioner will do the trick.
Use gravel that is not likely to get stuck in your fish’s throat. Goldfish are particularly at risk of having gravel in their mouths. Use either coarse gravel (too large to swallow) or very small gravel. Large gravel is more suitable for goldfish because it is not likely to be blocked in their throats since they like to search the ground for food.
Clean the gravel before putting it in the aquarium. Most aquarium gravel should be rinsed off as the water may be dirty or cloudy. Even if you just bought it, rinse your gravel and soak it for a day in water to remove impurities and be sure that your goldfish has the best environment to flourish. Be careful not to use soap.
Make sure the aquarium is decorated and lit
Goldfish are diurnal animals, which means they are active during the day. They need light to have a healthy sleep cycle and to keep their colors bright . Fish that don’t sleep well or don’t get enough sunlight will lose their color and become pale. Keep your aquarium lit 8 to 12 hours a day to recreate the natural cycles of day and night if it is not receiving natural light. Never expose it directly to the sun, as this can cause large temperature variations and encourage the proliferation of creeping algae.
Place a stone or piece of wood with artificial greenery in the water. Stone or wood gives the fish corners and cracks to explore while artificial plants do not grow and therefore do not risk invading the aquarium. Goldfish thrive with minimal decoration. They are most often chubby and are poor swimmers, which means that with fewer obstacles, they can swim freely. Place a medium or large object in the center of the aquarium and plastic plants outside the swimming area to give your fish maximum usable space.
Real plants are beneficial as they absorb ammonia, nitrites, and nitrates which accumulate in the aquarium due to waste and natural wear and tear. However, goldfish are voracious eaters. Use artificial plants until you have the time and resources to protect real plants from hungry goldfish.
Make sure your decorations are not hollow (at the risk of favoring the proliferation of potentially dangerous bacteria) and do not have sharp edges (your fish may injure their fins).
Use fluorescent lights in your aquarium. Halogen and incandescent lamps will also do the trick. Pay attention to the amount of light you give your companion: goldfish enjoy 12 hours of light and 12 hours of darkness.
Install a water filter
Goldfish need a water filter. The filter plays 3 roles: mechanical to remove large particles (fish droppings or food scraps), chemical to remove odors, discoloration, and organic and biological materials to remove waste with good bacteria and ammonia. The filter must be adapted to the size of the aquarium. If you hesitate between 2 different flow filters, it is better to opt for the more powerful model. Clean water and an efficient and functional filtration system will keep your fish happy and healthy. 3 types of filters are widely used.
External power filters which are hung on the edge of the aquarium and which pump water to return it filtered. They are widely used, offered at low prices, and probably offer the best value for money .
Canister filters are installed under the aquarium and use different tubes to filter the water. They are silent, cost a little more than external power filters, but are more efficient than the latter. Canister filters are designed for aquariums larger than 190 L and are therefore not suitable for small aquariums.
Dry/wet filters use an overflow box to filter out impurities. However, they are larger than external power filters or canister filters and are more suitable for aquariums that contain at least 190 L of water.
Fill the aquarium
Once your aquarium at home, fill it with tap water previously treated with a suitable conditioning solution. You can also use distilled water.
Untreated tap water or drinking water contains chemicals and minerals that are harmful to fish.
Set up a nitrogen cycle
Set up a nitrogen cycle before installing the goldfish in his new home. A nitrogen cycle is to pour ammonia into the aquarium and monitor the nitrate levels to make sure the water is safe. Unfortunately, many fish die after being introduced to their new aquarium due to ammonia and nitrate poisoning. Be sure to use a dechlorinator, as chlorine in tap water can kill your fish.
Before putting the fish in the aquarium, you need to make sure that the environment there is ideal. Buy a pH test kit and test your aquarium for the right amount of ammonia, nitrite, and nitrate. In the end, you should have 0 ammonia, 0 nitrite, and less than 20 nitrates. Test strips are difficult to use correctly and are quite expensive. Instead, buy a liquid test kit like the API Master Test Kit.
The first step is to continuously add drops of ammonia. This initiates the process of transformation into nitrite and if you continue, you will eventually see nitrates that are consumed by algae and plants. Once the process is complete, your goldfish can return to their new home!
Enough talk about Choosing an aquarium and maintaining it. Let’s talk about Caring for and feeding your goldfish:
Put the fish in his aquarium
Hopefully, your goldfish (if you have more than one) will be the same variety. Unfortunately, goldfish are known to eat other smaller fish and to eat a lot while leaving nothing for their fellows. If another fish is smaller or slower, it will have no chance. Use a commercially available aquarium divider to separate the “raw” or weaker fish from the rest.
Goldfish can be a flourishing fish in the community, but their roommates must be chosen with care. Poor Neon or zebrafish are excellent choices, as is Pleco. However: these fish live in schools and if you plan to buy them, you will have to buy at least half a dozen. In summary: put your goldfish with other goldfish.
All new fish purchased from a pet store must be quarantined 2 weeks in advance. If they have any disease, you probably wouldn’t want them to contaminate your healthy fish!
Remember that goldfish like colder waters, unlike most other fish that live in communities. The other species you plan to add to your aquarium must, therefore, be resistant. You can also put your goldfish in an aquarium full of viviparous fish that will eat unwanted offspring and prevent overpopulation of fish in the aquarium.
Clean the aquarium
Clean the aquarium at least once a week even if it doesn’t seem dirty. Goldfish produce droppings that even your filter cannot eliminate. A clean aquarium means a happy and healthy goldfish. A happy and healthy goldfish lives for decades ! Soap is poisonous to fish and can kill them. So do not use soap to wash your aquarium and avoid filling it with tap water. Drinking water is also to be avoided because it does not contain the minerals essential for goldfish. Buy a water conditioner from a pet store and use it according to the manufacturer’s directions.
Do not remove the fish from the aquarium during cleaning. Use a vacuum cleaner to remove debris from the gravel without removing the fish from its habitat. If you have to remove it from the aquarium for any reason, use a plastic container instead of a net if possible. The net can damage the fins, unlike the container. Besides, goldfish are afraid of the net and you may stress them out .
Renew 25% of the water every week assuming that you have properly prepared your aquarium. Renew 50% of the water each time the nitrate levels reach 20. It may be useful to have old towels handy for this messy operation. Just be careful not to suck up small fish when changing the water.
Measure ammonia, nitrite, and pH
Do you remember the test you did before putting your little fish in the aquarium? You will have to do it again! The ammonia and nitrite levels must be at 0. As for the pH, it can be between 6.5 and 8.25.
Feed your fish 1 or 2 times a day
Give him only the amount of food he can eat in a minute. What is written on the product packaging is false. Goldfish can easily overheat and die. It is always better to undernourish them than the reverse. If you use floating food, soak it for a few seconds in water before serving. It will sink, which prevents your fish from swallowing air while eating and therefore prevents buoyancy problems.
Like humans, goldfish need to diversify their diet. Give your fish pellets regularly and sometimes give them live food such as artemia. Also, give him freeze-dried food from time to time such as mosquito larvae or bloodworms. Remember to soak the freeze-dried food in a cup of aquarium water before giving it to your fish. It can swell in your stomach and cause buoyancy problems.
Give your fish only what he can eat in 1 minute. Remove leftover food, as goldfish die from overeating more often than any other fish.
Feed him at the same time each day (once in the morning and once in the evening) and in the same place in the aquarium.
Turn off the lights and let him sleep
Goldfish have no eyelids and never really stop swimming, but their bodies go into hibernation. You see that they sleep when they change color slightly and are less active (they stay on one side of the aquarium).
Goldfish like to sleep in the dark. A lit aquarium is only necessary if you are growing plants or if the room where it is located in poorly lit. Even if you don’t have a lit aquarium, it’s good for the environment to reduce unnecessary energy consumption by turning off the lights.
Let the water temperature vary with the seasons
Goldfish do not like temperatures above 24 ° C, but they like seasonal changes during which the water does not exceed 15-20 ° C in winter. Also, note that they do not eat below 10-14 ° C.
With a good thermometer, it will be easy for you to monitor the water temperature. You can choose between 2 types of thermometers: those that are hung inside the aquarium and those that are hung outside. The 2 are precise enough, but the idea remains the models that hang inside.
If you do not want your goldfish to reproduce, a temperature maintained at 23 ° C throughout the year is perfect. If you want them to breed, simulate the seasons (goldfish spawn in spring). Start by lowering the temperature (hey, guys, it’s winter!) To 10 ° C or 12 ° C. Then, when the moment of reproduction arrives, gradually increase it to 20 ° C or 23 ° C. This signals to fish that they can lay their eggs.
Its time now to solve problems that you can face during all this period:
Check the oxygen levels in the aquarium
If you see your goldfish rising to the surface, there may not be enough oxygen in the water. Fortunately, you can solve the problem by reducing the water temperature. Lower the temperature or place your aquarium away from the sun. You can also buy a bubbler or a pump that causes a jet of air bubbles.
If you have read everything that has been said before, you are now aware of the most common problems and know how to avoid them! As long as you keep the pH, ammonia, nitrate, and oxygen at a normal level, as long as you don’t overfeed your fish and as long as you keep your aquarium clean, you avoid 95% potential problems that may occur. Good for you!
Clean the cloudy water in your aquarium
Sometimes, even when you put in a lot of effort, things keep going wrong. The water can turn yellow, green, or even white. If this is the case, it is not a serious problem, but still, think of cleaning your aquarium!
Each color variation indicates a different problem. Algae, bacteria, or even residues of plant material may be involved. Don’t worry too much! After another nitrogen cycle or a water change, your fish will be safe.
Look for signs of ichthyophtiriasis
One of the most common diseases in goldfish is ichthyophtiriasis. It causes the appearance of small white dots on the body and the fins and causes breathing difficulties. It is a curable parasite. Put your fish in a hospital aquarium and use a commercially available fungicide.
The thing you need to do here is to isolate your fish from other living things, including plants, as the parasite can contaminate plants and animals.
If you notice white spots on your gravel or your decorations, remove your filter and treat the whole aquarium. Isolate sick fish, as they will need more attention than healthy fish.
You can also use non-chemical solutions, such as increasing the water temperature or adding large amounts of aquarium salt. A temperature of 29 ° C or a tablespoon of salt for 3.5 L of water will eliminate ichthyophtiriasis . To increase the water temperature (a few degrees per hour) or add salt (1 tablespoon of salt per 3.5 L of water every 12 hours) and continue treatment for at least 3 days after the disappearance of all signs of infection. At the end of the treatment, regularly replace the water to remove the salt and reduce the temperature of the aquarium. Be prepared to see a loss of color or vitality in the treated fish.
Look for signs of trematode infection
Another common parasite in goldfish is trematodes. When infected, they scratch against the surfaces that surround them, develop an outer layer of mucus, blush, and have a swollen belly.
As with any fish parasite (like ichthyophtiriasis), you need to isolate your companion. He can come back to swim with his fin friends after a few days if you deal with the problem quickly.
Look for signs of swim bladder disease
This disease is easy to identify because your fish is leaning sideways or swimming upside down. It may seem dead to you, but luckily it isn’t. Fortunately, too, the disease is not contagious and can be easily treated.
In the case of swim bladder disease, it is not necessary to quarantine the fish. This disease is not caused by a parasite. However, you can isolate your fish for more safety.
In general, there is no need to use medication to treat swim bladder disease, since poor diet or overeating is often the cause. Give your fish less food or even better, do not give it anything for 3 days. The bacteria in his gut will have time to return to their normal state. If symptoms persist, change her diet to include more fiber-rich foods like peas or cucumbers, or give her a medicine specially designed to treat internal infections.
Take appropriate action if your fish dies
The first thing to do: put your fish in a place where its smell is not likely to spread in the house. You can bury it or, if you feel like it, throw it on a compost heap. Do not throw the fish down the toilet! Take it out of the aquarium with a plastic bag: turn the bag over and grab the fish. Cleaning the aquarium depends on the situation.
If there is only one dead fish, chances are you’ve detected the parasite early enough that it hasn’t had time to infect the other creatures in the aquarium.
If all of your fish are dying or are dying, you will need to thoroughly clean your aquarium with a bleach solution. Use ¼ teaspoon of bleach for 3.5 L of water. Leave on for 1 or 2 hours to remove all the toxins, then discard the water and let it dry.
Advice and Suggestions
A healthy goldfish has shiny scales and straight dorsal fins. When buying your fish, make sure it is bright and happy!
Goldfish sometimes put gravel in their mouths. If you see yours doing the same, don’t panic! Most often, he will spit it out right away! Just avoid buying too small gravel which could suffocate it.
A goldfish can easily stay a week without eating. If you forget to feed him for a day or two, there is little risk.
The memory of goldfish is not limited to 3 seconds. They remember a lot, you have proof of that every time it immediately comes to the surface when you hear the feed hatch open! Most fish are intelligent.
If your goldfish looks sick, wash the aquarium water a little more often and feed it regularly. If the problem gets worse, do some research and read the forums for solutions or take it to the nearest pet store for help.
Never put your goldfish in a narrow-top bowl. Because of the circular shape, it may bang against the glass and the too-small opening will not bring enough oxygen into the water. Don’t just watch movies and say, “Okay, that sounds easy! Just put the goldfish in a bowl! No, it doesn’t work like that.
You need 75 L of water per fish. If you have 2 goldfish, a 150 L aquarium will suffice for their entire life. But if you have several fish, opt for a 280L aquarium.
If your fish has white spots on different parts of its body, it is a disease called white spot disease. It can be treated with a solution that you can easily find in most pet stores.
Do not take your fish out of their aquarium just because they have their eyes open and stay still. Fish sleep this way: they have no eyelids and they sleep with their eyes open.
When cleaning an empty aquarium, use baking soda. The baking soda removes algae from artificial plants, the edges of the aquarium, gravel, and the filter. Then rinse properly.
Never put a goldfish in a bowl or container of less than 75 L unless it is only temporary. Not only is the bowl too small, but it is also difficult to filter, prevents the exchange of oxygen, increases the risk of accidents due to its rounded shape, and slows the growth of the fish. Fish living in jars are exposed to deadly chemicals not filtered out and space problems. The chemicals severely damage their immune systems and kill them instantly or slowly and painfully over the years. Life in a bowl reduces the life expectancy of a goldfish by 80% on average. In human life, it’s only been 15 to 20 years!
Goldfish can and will try to eat just about everything. So be careful what you put in the aquarium!
Goldfish grow (to about 20 cm, but the exotic varieties are smaller and measure 15 cm) and live between 15 and 30 years. Unfortunately, millions of them die each year due to inappropriate sounds and myths (goldfish bowl, etc.). Take good care of your fish and they will live very, very long.
Do not rely on the pictures on the packaging of your aquarium. Almost all show a filled aquarium. However, this promotes problems and significantly reduces the fish’s living space.
Be careful of the other fish you put with your goldfish! Do your research and ask your pet store. The skeleton of your companion floating in the aquarium is probably the last thing you want to see. Be careful when asking the seller, because most of them don’t even know what they’re talking about. Prefer instead of forums or care sheets.
Stir the sand in the aquarium when you change the water to prevent it from compacting and to prevent the formation of dangerous gases inside.
Cold-water fish: What are they? How to feed them? and Types
Are you thinking of having animals but don’t have much time to take care of them? The Fish Info recommends you buy an aquarium and some cold-water fish. These, unlike those that live in tropical climates, do not need a thermostat. Only that the water is clean and, of course, that they are fed several times a day.
Although there are not many species available. The truth is that there are enough to set up an aquarium. Learn about the main characteristics of cold-water fish and what care they require to live for several years.
Cold-water fish are those that live in seas where the average temperature ranges between 16 and 24ºC. Their bodies are rounded, with single or double fins. Which can be more or less short depending on the species of the fish.
If we talk about sight, it is not usually very good, but that is not a problem for them. Thanks to their nostrils and the beards around their mouths. They can guide themselves and detect the presence of another approaching animal.
In general, they are calm animals, swimming slowly. For this reason, they can help you a lot to relax. In this sense, you can read another article which is about Different types of fish.
What care do they require?
In order for cold-water fish to stay healthy, it is very important that we provide them with basic care, which is:
Food: It is essential to give them quality food. Which we can find in animal products stores. It is necessary to give the food according to its size so that the small or medium will be given granules and the largest pellets. The frequency will be 2 to 3 times a day, and always the amount they can eat in seconds.
Maintenance: Thefishinfo.com highly recommends keeping them in ponds or in glass aquariums, with water whose pH is between 6.5 and 7.5. The place where they located needs to be cleaned thoroughly between one and two times a week. Putting the fish in a bowl or basin of water until their home has been left unpolluted.
Types of cold-water fish
Now that you know what they are like and how they take care of themselves. It is time to know what types of cold-water fish are the most common in aquariums.
This is one of the fish that we most often find in pet stores. Its scientific name is Puntius conchonius , and it is native to Afghanistan, Pakistan, India, Nepal, Bangladesh, and Burma. It is very resistant, withstanding temperatures between 17 and 25 degrees Celsius. Once they reach adulthood, they are 14cm in length.
The Goldfish, whose scientific name is Carassius auratus, although it is better known as crucian or redfish, is by far one of the most popular. It is native to China, and due to its size -about 15cm in adulthood- it is very suitable to have in aquariums of different sizes. There are many varieties, such as the Bubble Eyes or the Lion’s Head, but with any of them, you can enjoy this hobby without having to worry.
Koi Carps, or Cyprinus carpio in scientific language, is one of the most loved fish. It is also native to China, although they live in all seas, except in the cold poles. It is a relative of the common carp, and you should know that they can grow up to 70cm if the aquarium is large.
The marble coridora or pepper coridora, scientifically known by the name Corydoras paleatus, is one of the most recommended for beginners since it tolerates different qualities of water. It is native to the subtropical area of South America. Specifically, it lives in the rivers of Argentina, Bolivia, Brazil, Paraguay, and Uruguay. It grows up to 14cm.
This fish, of the genus Gambusia, also know as mosquitofish, is very resistant, so much so that they can survive in both warm and cold water. They are native to the rivers of most of the world, including Europe, Asia, and Africa. They can be kept in small or medium aquariums since they grow up to 14cm, but we must know that this fish is carnivorous, and can eat the fry of other fish species.
This is one of the fish that stands out for its beautiful colors, but also its adaptability, withstanding from 4ºC to 22ºC. Its scientific name is Lepomis gibbosus, and it is native to North America, although today, thanks above all to the help of the human being, it is also found in Africa and Europe. It is a carnivorous animal, so it is not advisable to put it with other fish species, nor should it be returned to its wild state. Adult males can grow up to a maximum of 20cm.
So far our special on cold-water fish. We hope we have helped you choose your new tenants. Do you know more small size cold water fish? Published By Thefishinfo.com
The bluefish and white differ so digestible meat, and therefore, by the different proportions of fat that have their muscles. There is also an intermediate group which is called semi-fat fish.
Different Types Of White Fish
Here is the list of different types of white fish:
Hake is one of the fish that accepts the most preparations, from the simplest recipes to the most sophisticated. It is a white fish with tasty and soft meat and although there are many species. The common European hake is the most exquisite.
This fish is also known by the name of toad or frogfish. It is a white saltwater fish that lives on the ocean floor. Thanks to the consistency of its meat, and since its fillets are boneless. It is perfect for those who reject fish.
It is fish whose main characteristic is that it has both eyes located on the left side of the body. Rooster is a white fish with a smooth texture and flavor with very low-fat content and there are many recipes in which it is the protagonist.
Cod is a white saltwater fish of which there are some 60 different species. But the best known and most commercially important is the common cod. It is a fish with a pleasant taste, in fact, more prominent than that of other white fish.
Turbot is a white fish that due to its mild flavor and easy digestion is perfect for people with a delicate stomach and for people who are thinking of dieting. It is a firm and exquisite meat fish.
Sole is a white fish and is classified as one of the best flatfish for its good quality and for being low in fat. It can be found in the market throughout the year. Although the best time to consume it is between March and April.
Sea bass, cod, whiting, perch, and stingray are the leanest white fish, providing 1.3 grams of fat per 100 grams of meat. Sea bass is considered a very nutritious fish that can be a regular part of low-calorie diets.
Different Types Of Blue Fish
Here is the list of different types of bluefish
Anchovies, sardines, and greaves are the three most consumed bluefish in our country. Anchovy is not one of the fattiest fish. Due to its small size, it can be manipulated with the hands without using kitchen utensils.
Sardine is a blue fish that has a good source of omega 3 that helps lower cholesterol and triglyceride levels. The consumption of sardines and other blue fish is recommended for people suffering from cardiovascular diseases.
The presence in the diet of greaves and other blue fish recommended for the quality of its fat. Which helps in reducing the risk of heart disease. The cicada is a good source of protein of high biological value and has vitamins and minerals.
Bonito is distinguished from tuna mainly by the length of the pectoral fin. Which is much longer in bonito. As well as by the oblique dark-colored stripes that bonito presents on both sides of the dorsal zone.
Mackerel belongs to the Scommbrid family as do tuna and bonito. A bluefish highly appreciated for its flavour and the consistency of its meat. The minerals that stand out in mackerel are potassium, magnesium, iodine, and iron.
It is convenient to differentiate tuna from albacore or northern tuna, which in some regions is called albacore. Tuna is one of the most consumed bluefish in our country and its meat has 12% fat. Although it is a fat-rich in omega 3.
Although salmon considered a bluefish, salmon is still leaner than most meats. Salmon’s iron is very easy to absorb and also has a high phosphorus content. Salmon is essential for the proper functioning of brain tissues.
Different Types Of Semi-fat Fish
Here is the list of different types of semi-fat fish
The golden fish or goldfish has a moderate fat content. This is why considered a semi-fat fish and, therefore, low in energy. So that if it is cooked simply and with little fat, its consumption is appropriate in diets to control the weight.
Semi-fat fish that provides around 3 grams of fat for every 100 grams of meat. Trout contains proteins of high biological value, but in lower amounts than other fish. This fish considered a very nutritious food that provides potassium and phosphorous.
It is a semi-fat fish that becomes bluefish in winter due to its high-fat content. Fished intensively since it is a fish that is consumed a lot and in Japan. Sea bream considered one of the best delicacies in large celebrations.
These fishes have light spots on a dark background. They have a lack of teeth on the upper mouth portion. Their color varies with environmental conditions. But they are generally brown in color. They have pink spots on their sides. Arctic char is often confused with the other species. Dolly Varden and Arctic Char have same locations Arctic Char have hooked lower jaw than Dolly Varden
3. Life history
Diet ( Arctic char
Their diet changes with the seasons. In summer, these fishes eat insects found on the surface of the water. They also eat snails and other smaller insects which are on the bottom of lakes and rivers. In the winter these fishes feed on smaller plants and other smaller fishes. Their diet also varies with location. Some people thought that Arctic Char shows their attitude while feeding.
Many fish businessmen thought that arctic char would live in a cold area of Canada. They would fetch a high price in the market. The basic investigation has to lead to the discovery of characteristics. The arctic char show resemblance with Salmon fish. The Iceland fish farming company selected a place on Island for farming the Arctic char on a big level. By that Arctic Char will be produced on a large scale. The Ceo of Iceland Fish farm Árni Páll Einarsson says that his aim is to make a healthy fish and grow Arctic char without polluting its surroundings.
Only a few people know about the history of the life of Arctic Char in Alaska lakes. In other areas, they exist in three different forms.
Their farms show the difference in the following things;
So these are few things that vary with the quality of the farm. If habitat, food selection, growth rates, and the average size of fish is best then you must know that fish is living in a suitable form.
Arctic char or not mammals. They lay eggs. Usually, they spawn in the month of October. These fishes lay eggs on the depths of the sea to keep their eggs safe. Before spawning, female arctic char select the place for the spawning in the security of male arctic char. The heads chin of eggs to place after two months of spawning. Young fish begin to feed after emerging the eggs.
Arctic char basically range across northern and southern polar region. They range across many American lakes and coastal areas in the Atlantic. These fishes are not common in every country of the world. This fish ranges only within a specific region
They found in the lakes on the mountain named “Kigluaik” and the “Kuskokwim”. Also found in interior Alaska which is near to Denali park. Basically they are native to northern streams, rivers, lakes, and coastal areas in North America.
Status Of Arctic Char
They have very important in the area of Alaska. Because these fishes are present in huge quantities in that area as compare to other fishes. Therefore their status according to that area of Alaska would be of supreme importance.
These fishes are generally considered to be stable due to only its range in Alaska. Some people do not know the actual trends of this fish in the area of Alaska due to a limited number of research and low harvesting rates. Surely, if businessman and fisheries department research on that area. They will able to get much information.
Usually, all fishes have some threats like environmental threats. But the threats to arctic char are given below.
Many people feel that having a bad fishing day is still better than a great work day, as the old saying goes. You’ll enjoy this article if you love just sitting back on your boat with a fishing rod.
If you are just starting out with fishing, don’t overload your tackle box. You can find millions of different types of bait and pieces of equipment in the fishing supply store. Though they all serve a purpose, you don’t necessarily need every piece. Start with a handful of different types of bait and a few different sized hooks and weights. You can always add more later once you have fine tuned your list of necessary products.
Since having just the right bait is crucial to catching more fish, here is an easy way to tell if you are seeing black or white crappie. White crappie have six spines in their dorsal fin while black crappie have seven or eight. White crappie also tend to have bands across their body while black crappie have a more speckled pattern.
Be prepared before you head out to fish. Plan to be in the water for a few hours and bring the necessary tools with you. This can include a lunch, some sunscreen, a few drinks, extra fishing line and hooks, and the tools you need to make simple repairs to your rod and reel. If you don’t do this, you might find that you have to leave your favorite spot before you have a chance to catch even one fish.
When you first start fishing, it’s important to know where to start fishing. You should start out in the shallows and then ease your way into deeper waters. Try starting in a small pond versus a large lake. You can start catching smaller fish to start with. This will help you work your way up to the bigger fish.
Timing is one of the most important aspects to understand when you are fishing. Research the different patterns for when certain fish will appear in the water to put yourself in the best position to maximize your results. Understanding the environment that you fish in is the most important factor while fishing.
If you have always fished from the shore, there are many things you need to understand before you undertake boat fishing. The differences are very large and there are many more safety issues at play when you begin to fish from the prow of a smaller boat in the middle of the water.
A great fishing tip that all fisherman can use is to practice different types of casting. It is important to learn to cast from different angles and distances to give yourself the best chances of presenting your bait in the exact location you want to. The difference between a bite and nothing can often be a few inches.
You will be more successful if you go fishing at the right time of day. Wait until the late afternoon, once the water is warm: this is when fishes are looking for food. The weather and the season influence the best time of day to fish, but you should always wait until the water warms up.
Make sure that you are selecting the right equipment for your fishing venture. If you are a beginner, you should select a simpler rod and reel that is easy to operate. Beginners should never use open-faced fishing reels. Once you get the hang of these rod and reels, you can move on to the more advanced ones.
It can sometimes be very discouraging when you fish in areas that have heavy vegetation and irritating branches to snag your line on. Such areas, however, are often places where fish love to hang out.
Pay attention to the weather. Wait a few days after a storm or a cold front. If the water is cold, fishes will stay at the bottom and not look for food. Usually, the water starts warming up again two days after a cold front has passed through an area.